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normal a226434206 process.c: fix ETXTBUSY from MJIT compiler process
This affects test/ruby/test_process.rb (test_execopt_env_path).

Since MJIT uses vfork+execve in a separate thread, there can be
small window in-between vfork and execve where tmp_script.cmd is
held open by the vforked child.  vfork only pauses the MJIT
thread, not any Ruby Threads, so our call to Process.spawn will
hit ETXTBUSY in that window unless we fork.

main thread                       | MJIT thread
----------------------------------------------------
fd = open(tmp)                    |                |
                                  | vfork for CC   |   CC running
write                             |                | ---------------
fchmod                            |                |  sees "fd" here
close(fd)                         |                |
    Process.spawn called          |                |
vfork  (spawn)|    (new process)  |                |
              | execve => TXTBUSY |                |
              |                   |                | execve (FD_CLOEXEC on fd)
              |                   | vfork returns  |

Holding the waitpid_lock whenever we intend to spawn a process
prevents the MJIT thread from spawning a process while we are
spawning in Ruby-land.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66171 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-03 19:49:54 +00:00
basictest basictest: --run-opt option 2016-10-19 05:22:51 +00:00
benchmark Rename fiber chain benchmark. 2018-11-20 10:17:08 +00:00
bin Regenerated binstubs of bundler, rdoc and irb. 2018-11-28 03:10:09 +00:00
bootstraptest Simply treat IO::WaitReadable just like Errno::EAGAIN 2018-11-20 05:18:28 +00:00
ccan ccan/list: sync with upstream 2018-02-01 08:59:27 +00:00
coroutine Fix for coroutine/win32/Context.obj 2018-11-28 01:04:39 +00:00
coverage fix a typo [ci skip] 2014-09-12 12:17:29 +00:00
cygwin MFLAGS for nmake 2017-02-10 06:12:22 +00:00
defs Always try to update revision.h with GNU make 2018-11-29 07:07:40 +00:00
doc [DOC] rational and imaginary literals [ci skip] 2018-11-17 01:21:18 +00:00
enc solve the genie/zombie/wrestlers bug 2018-12-02 10:07:42 +00:00
ext ext/bigdecimal/bigdecimal.c: drop unused function 2018-12-03 12:39:11 +00:00
gems Update latest versions of bundled gems. 2018-07-25 11:34:35 +00:00
include make `RARRAY_PTR_USE` more conservertive. 2018-12-03 12:36:39 +00:00
lib Fixed test fails against OpenSSL 1.1.1. 2018-12-03 12:01:26 +00:00
libexec Use stub executables generated by RubyGems istead of original executables. 2018-11-25 01:20:00 +00:00
man Merge bundler-2.0.0.pre.2 from upstream. 2018-11-27 12:08:19 +00:00
misc ruby-style.el: ruby-style-c-mode by VCS [ci skip] 2018-11-27 13:47:49 +00:00
missing [ci skip] tabify 2018-01-20 04:18:09 +00:00
sample Fix typo in trick2018/README [ci skip] 2018-12-03 10:35:13 +00:00
spec Use /bin/echo instead of shell builtin echo 2018-12-03 09:55:05 +00:00
template Let sub-directory exts depend on their parent ext 2018-12-01 09:29:14 +00:00
test process.c: fix ETXTBUSY from MJIT compiler process 2018-12-03 19:49:54 +00:00
tool update-deps: support coroutine dependencies 2018-12-03 13:12:34 +00:00
win32 update-deps: support coroutine dependencies 2018-12-03 13:12:34 +00:00
.document Include LEGAL in .document [ci skip] 2018-12-01 12:05:37 +00:00
.editorconfig Set indent_size of reg*.[ch] to 2 [ci skip] 2018-10-03 07:43:13 +00:00
.gdbinit support theap for T_HASH. [Feature #14989] 2018-10-30 22:11:51 +00:00
.gitattributes rename ruby-runner as bin/ruby 2017-09-15 17:42:00 +00:00
.gitignore Ignore goruby wrapper 2018-12-03 13:12:29 +00:00
.indent.pro
.travis.yml .travis.yml: cache unicode.org files 2018-11-29 05:26:05 +00:00
BSDL
CONTRIBUTING.md [DOC] Please see _the_ official issue tracker... [ci skip] 2014-06-13 23:42:35 +00:00
COPYING COPYING: expand tabs 2017-02-18 22:38:35 +00:00
COPYING.ja
GPL
KNOWNBUGS.rb compile.c: fix positions encode 2018-04-05 13:13:00 +00:00
LEGAL LEGAL: update [ci skip] 2018-12-01 23:28:16 +00:00
Makefile.in Change Makefile rule for assembly to use .S rather than .s 2018-11-24 11:35:29 +00:00
NEWS add a NEWS entry of TracePoint#enable 2018-12-03 13:39:42 +00:00
README.EXT README.EXT: add redirect [ruby-core:68631] 2015-03-25 21:43:58 +00:00
README.EXT.ja README.EXT.ja: add redirect [ruby-core:68631] 2015-03-30 13:08:16 +00:00
README.ja.md [DOC] Added CI build status for Japanese docs 2018-07-31 17:11:00 +00:00
README.md README.md: add wercker status badge [ci skip] 2018-11-02 12:21:59 +00:00
aclocal.m4 Update aclocal to 1.16.1 [ci skip] 2018-10-05 03:25:33 +00:00
addr2line.c Show function name based on dladdr 2018-11-20 22:40:21 +00:00
addr2line.h Support Mach-O on backtrace with DWARF 2018-10-20 06:35:25 +00:00
appveyor.yml Try with TZInfo and Timezone gems 2018-11-28 14:08:34 +00:00
array.c * expand tabs. 2018-12-03 12:36:47 +00:00
ast.c Refine RubyVM::AbstractSyntaxTree::Node#type 2018-12-03 01:06:34 +00:00
bignum.c bignum.c: fix bug in big2dbl() 2018-11-16 03:34:53 +00:00
class.c * remove trailing spaces, expand tabs. 2018-10-30 22:12:12 +00:00
common.mk update-deps: support coroutine dependencies 2018-12-03 13:12:34 +00:00
compar.c Comparable#clamp 2016-08-11 07:24:25 +00:00
compile.c Revert "Collapse putobject, putobject, newarray" 2018-12-01 00:08:36 +00:00
complex.c complex.c: rb_dbl_complex_polar_pi 2018-11-04 00:22:13 +00:00
configure.ac use __builtin_setjmp on mingw64 [Bug #15348]. 2018-11-29 06:37:01 +00:00
constant.h vm_insnhelper.c: rb_autoloading_value flag 2018-02-13 09:34:43 +00:00
cont.c Avoid GCing dead stack after switching away from a fiber 2018-12-01 03:49:52 +00:00
debug.c internal.h: remove dependecy on ruby/io.h 2018-01-09 06:24:10 +00:00
debug_counter.c add debug counters more. 2018-09-28 01:10:43 +00:00
debug_counter.h support theap for T_HASH. [Feature #14989] 2018-10-30 22:11:51 +00:00
dir.c fix "initialize miss". 2018-09-26 02:23:21 +00:00
dln.c reduce copy & paste 2018-07-30 07:07:48 +00:00
dln.h
dln_find.c dln_find.c: MAXPATHLEN is not used already 2016-06-02 16:52:15 +00:00
dmydln.c UNREACHABLE_RETURN 2018-07-24 05:38:07 +00:00
dmyenc.c load.c: tweak the return value 2014-12-03 06:13:58 +00:00
dmyext.c dmyenc.c: separate 2014-11-27 20:02:32 +00:00
encindex.h encoding.c: rb_enc_find_index2 2017-12-22 01:03:17 +00:00
encoding.c encoding.c: check external encoding 2018-09-15 16:27:06 +00:00
enum.c make `RARRAY_PTR_USE` more conservertive. 2018-12-03 12:36:39 +00:00
enumerator.c use RARRAY_AREF instead of RARRAY_PTR_USE. 2018-12-03 03:51:55 +00:00
error.c Add rb_typeddata_is_instance_of 2018-11-27 03:19:06 +00:00
eval.c process.c: avoid dlclose before exec 2018-11-26 15:12:31 +00:00
eval_error.c eval_error.c: log10(0) is ERANGE 2018-11-15 09:03:03 +00:00
eval_intern.h reduce copy & paste 2018-07-30 07:07:48 +00:00
eval_jump.c `$SAFE` as a process global state. [Feature #14250] 2017-12-28 20:09:24 +00:00
file.c file.c: use correct integer-conversion function 2018-10-23 12:23:04 +00:00
gc.c Remove HEAP_ALIGN_LOG setting in configure.ac for OpenBSD/MirOS 2018-11-29 06:16:31 +00:00
gc.h remove rb_threadptr_during_gc(). 2017-10-29 13:51:37 +00:00
gem_prelude.rb Reduce system calls by activating the `did_you_mean` gem. 2016-02-25 23:23:30 +00:00
golf_prelude.rb added `f` for 1 byte FizzBuzz because Hexagony has such feature 2018-05-21 06:20:24 +00:00
goruby.c goruby.c: FD leak [ci skip] 2017-03-09 03:38:06 +00:00
hash.c make `RARRAY_PTR_USE` more conservertive. 2018-12-03 12:36:39 +00:00
hrtime.h hrtime.h: fix typo in non-builtin overflow check 2018-08-30 03:24:55 +00:00
ia64.S Change Makefile rule for assembly to use .S rather than .s 2018-11-24 11:35:29 +00:00
id_table.c adjust styles [ci skip] 2017-05-10 00:39:26 +00:00
id_table.h id_table.h: dummy sentinel 2016-08-06 00:35:33 +00:00
inits.c initialize VM postponed_job first. [Bug #15288] 2018-11-08 05:35:46 +00:00
insns.def Rename get/setinlinecache to opt_get/opt_setinlinecache 2018-11-07 08:13:20 +00:00
internal.h make `RARRAY_PTR_USE` more conservertive. 2018-12-03 12:36:39 +00:00
io.c io.c: fix clang -Werror,-Wshorten-64-to-32 on Linux sendfile 2018-11-29 23:30:28 +00:00
iseq.c Add rb_typeddata_is_instance_of 2018-11-27 03:19:06 +00:00
iseq.h `TracePoint#enable(target_line:)` is supported. [Feature #15289] 2018-11-26 20:16:14 +00:00
lex.c.blt keywords: shrink struct kwtable 2018-01-21 09:59:45 +00:00
load.c Prefer `rb_fstring_lit` over `rb_fstring_cstr` 2018-10-13 09:59:22 +00:00
loadpath.c -Wno-overlength-strings 2018-01-16 08:35:33 +00:00
localeinit.c internal.h: remove dependecy on ruby/encoding.h 2018-01-09 06:24:11 +00:00
main.c main.c: RUBY_DEBUG_ENV in devel 2017-06-30 04:19:12 +00:00
marshal.c avoid division by zero 2018-11-16 01:52:39 +00:00
math.c math.c: adjust cbrt 2018-06-06 14:01:43 +00:00
method.h Revert "Symbol refinements" 2018-12-03 08:51:29 +00:00
miniinit.c miniinit.c: built-in encoding aliases 2015-12-26 02:26:40 +00:00
mjit.c mjit.c: eliminate -save-temps flag 2018-12-03 12:32:01 +00:00
mjit.h vm_trace.c: MJIT-limited thread-safety for postponed_job 2018-11-26 15:47:20 +00:00
mjit_compile.c mjit.c: copy call cache values to MJIT worker 2018-10-21 14:23:24 +00:00
mjit_worker.c mjit.c: eliminate -save-temps flag 2018-12-03 12:32:01 +00:00
node.c Removed unreachable code 2018-10-12 12:54:21 +00:00
node.h Parse the source in SCRIPT_LINES__ as array 2018-11-10 11:40:33 +00:00
numeric.c Make some internal functions static 2018-11-16 06:52:00 +00:00
object.c object.c: Deprecate Object#=~ and add NilClass#=~` 2018-11-26 07:55:07 +00:00
pack.c pack.c: cast from double to float can be undefined 2018-11-16 09:04:34 +00:00
parse.y Fix locations of NODE_UNDEF in undef with multiple args 2018-11-25 12:31:35 +00:00
prelude.rb `TracePoint#enable(target_line:)` is supported. [Feature #15289] 2018-11-26 20:16:14 +00:00
probes.d change lingering dtrace probe documentation from function- to method- 2015-05-30 02:04:26 +00:00
probes_helper.h vm.c: disable dtrace in jit source 2018-02-20 03:15:33 +00:00
proc.c * expand tabs. 2018-11-26 18:16:54 +00:00
process.c process.c: fix ETXTBUSY from MJIT compiler process 2018-12-03 19:49:54 +00:00
random.c suppress integer overflow warnings 2018-11-13 00:40:52 +00:00
range.c range.c: [DOC] improve docs for Range#cover? 2018-10-12 21:11:54 +00:00
rational.c rational.c (nurat_div): use the dedicated function nurat_to_f 2018-11-14 14:12:30 +00:00
re.c char is not unsigned 2018-11-21 08:51:39 +00:00
regcomp.c Fix issues detected by code analysis tool (mainly Coverity). 2018-09-15 09:59:14 +00:00
regenc.c Merge Onigmo 6.1.1 2017-02-11 15:08:33 +00:00
regenc.h initializer paren-string `{("str")}` is a C99ism 2018-01-02 06:41:49 +00:00
regerror.c regerror.c: lenghten MAX_ERROR_PAR_LEN to contain old property names 2018-10-16 09:10:56 +00:00
regexec.c label as lvalue is a GCCism 2018-01-02 06:41:54 +00:00
regint.h Merge Onigmo 6.1.1 2017-02-11 15:08:33 +00:00
regparse.c remove unnecessary settings with NULL_NODE in \X implementation 2018-12-02 23:28:42 +00:00
regparse.h Fix typos. 2018-01-18 11:44:10 +00:00
regsyntax.c Merge Onigmo 6.0.0 2016-12-10 17:47:04 +00:00
ruby-runner.c ruby-runner.c: enable MJIT_SEARCH_BUILD_DIR only if no relative loading 2018-11-07 07:21:00 +00:00
ruby.c ruby.c: do not surface MJIT to user 2018-11-19 14:00:49 +00:00
ruby_assert.h string literal longer than 509 characters is a C99ism 2018-01-02 06:41:43 +00:00
ruby_atomic.h move atomic logic from mjit.c from ruby_atomic.h 2018-08-01 03:40:37 +00:00
rubystub.c rubystub.c: sys/param.h for MAXPATHLEN 2016-08-20 05:58:58 +00:00
safe.c `$SAFE` as a process global state. [Feature #14250] 2017-12-28 20:09:24 +00:00
signal.c refactoring debug_counter. 2018-09-25 18:13:29 +00:00
siphash.c switch SipHash from SipHash24 to SipHash13 variant 2017-01-20 06:01:23 +00:00
siphash.h blacklist UBSAN's unsigned integer overflow 2018-11-07 04:09:05 +00:00
sparc.c configure.ac 2017-09-29 13:21:17 +00:00
sprintf.c sprintf.c: fix typo 2018-04-22 19:41:06 +00:00
st.c st.c: bin might be zero 2018-11-08 09:52:14 +00:00
strftime.c Prefer `rb_fstring_lit` over `rb_fstring_cstr` 2018-10-13 09:59:22 +00:00
string.c string.c: [DOC] deprecate String#crypt [ci skip] [Feature #14915] 2018-12-03 05:46:46 +00:00
struct.c * expand tabs. 2018-11-05 08:02:31 +00:00
symbol.c symbol.c: dsymbol initial encoding 2018-06-28 07:34:36 +00:00
symbol.h symbol.h: remove stale symbol deleted at r47913 2018-04-06 13:25:11 +00:00
thread.c vm_trace.c: workqueue as thread-safe version of postponed_job 2018-11-30 03:56:29 +00:00
thread_pthread.c thread_pthread.c (rb_reserved_fd_p): false-positive on negative FD 2018-11-20 07:27:28 +00:00
thread_pthread.h thread_pthread.h: rename `gvl.acquired' to `gvl.owner' and document 2018-08-28 00:24:08 +00:00
thread_sync.c Add some missing documentation to Queue#{close|deq} [ci skip] 2018-09-16 02:45:16 +00:00
thread_win32.c add disabling MJIT features option. 2018-10-20 06:53:00 +00:00
thread_win32.h * ext/openssl/depend: remove dependency from internal headers. 2014-05-14 10:55:38 +00:00
time.c time.c: rescue find_timezone when loading 2018-11-28 14:08:35 +00:00
timev.h Timezone support by Time [Feature #14850] 2018-10-08 02:35:31 +00:00
transcode.c Fix call-seq of Encoding::Converter#putback [ci skip] 2018-11-01 06:36:04 +00:00
transcode_data.h transcode_data.h: missing cast 2015-08-08 00:33:11 +00:00
transient_heap.c adopt sanitizer API 2018-11-06 10:06:07 +00:00
transient_heap.h introduce USE_TRANSIENT_HEAP to enable/disable theap. 2018-11-01 08:53:44 +00:00
util.c suppress integer overflow warnings 2018-11-15 07:34:01 +00:00
variable.c No new entry when getting undefined global variable 2018-11-25 04:05:09 +00:00
version.c add disabling MJIT features option. 2018-10-20 06:53:00 +00:00
version.h * 2018-12-03 2018-12-02 21:41:51 +00:00
vm.c ALWAYS_INLINE implies inline always 2018-11-27 01:25:16 +00:00
vm_args.c Revert "Symbol refinements" 2018-12-03 08:51:29 +00:00
vm_backtrace.c Make some internal functions static 2018-11-16 06:52:00 +00:00
vm_core.h vm_trace.c: workqueue as thread-safe version of postponed_job 2018-11-30 03:56:29 +00:00
vm_debug.h
vm_dump.c * expand tabs. [ci skip] 2018-11-07 12:48:39 +00:00
vm_eval.c Enable refinements to public_send. 2018-11-22 07:53:07 +00:00
vm_exec.c vm_exec.c: reduced repeated same calls 2018-03-04 01:52:19 +00:00
vm_exec.h fix typo. 2018-09-21 06:30:54 +00:00
vm_insnhelper.c * expand tabs. 2018-11-26 18:16:54 +00:00
vm_insnhelper.h vm_insnhelper.h: rename CI_SET_FASTPATH to CC_SET_FASTPATH 2018-09-18 12:48:28 +00:00
vm_method.c Revert "Symbol refinements" 2018-12-03 08:51:29 +00:00
vm_opts.h vm_opts.h: share USE_IC_FOR_IVAR as OPT_IC_FOR_IVAR 2018-10-14 11:25:36 +00:00
vm_trace.c vm_trace.c: workqueue as thread-safe version of postponed_job 2018-11-30 03:56:29 +00:00
vsnprintf.c avoid division by zero 2018-11-16 01:52:39 +00:00
wercker.yml wercker.yml: debug problematic test on test-all 2018-11-18 09:32:29 +00:00

README.md

Build Status Build status wercker status

What's Ruby

Ruby is the interpreted scripting language for quick and easy object-oriented programming. It has many features to process text files and to do system management tasks (as in Perl). It is simple, straight-forward, and extensible.

Features of Ruby

  • Simple Syntax
  • Normal Object-oriented Features (e.g. class, method calls)
  • Advanced Object-oriented Features (e.g. mix-in, singleton-method)
  • Operator Overloading
  • Exception Handling
  • Iterators and Closures
  • Garbage Collection
  • Dynamic Loading of Object Files (on some architectures)
  • Highly Portable (works on many Unix-like/POSIX compatible platforms as well as Windows, macOS, Haiku, etc.) cf. https://github.com/ruby/ruby/blob/trunk/doc/contributing.rdoc#platform-maintainers

How to get Ruby

For a complete list of ways to install Ruby, including using third-party tools like rvm, see:

https://www.ruby-lang.org/en/downloads/

The trunk of the Ruby source tree can be checked out with the following command:

$ svn co https://svn.ruby-lang.org/repos/ruby/trunk/ ruby

Or if you are using git then use the following command:

$ git clone https://github.com/ruby/ruby.git

There are some other branches under development. Try the following command to see the list of branches:

$ svn ls https://svn.ruby-lang.org/repos/ruby/branches/

Or if you are using git then use the following command:

$ git ls-remote https://github.com/ruby/ruby.git

Ruby home page

The URL of the Ruby home page is:

https://www.ruby-lang.org/

Mailing list

There is a mailing list to talk about Ruby. To subscribe to this list, please send the following phrase:

subscribe

in the mail body (not subject) to the address ruby-talk-request@ruby-lang.org.

How to compile and install

This is what you need to do to compile and install Ruby:

  1. If you want to use Microsoft Visual C++ to compile Ruby, read win32/README.win32 instead of this document.

  2. If ./configure does not exist or is older than configure.ac, run autoconf to (re)generate configure.

  3. Run ./configure, which will generate config.h and Makefile.

    Some C compiler flags may be added by default depending on your environment. Specify optflags=.. and warnflags=.. as necessary to override them.

  4. Edit defines.h if you need. Usually this step will not be needed.

  5. Remove comment mark(#) before the module names from ext/Setup (or add module names if not present), if you want to link modules statically.

    If you don't want to compile non static extension modules (probably on architectures which do not allow dynamic loading), remove comment mark from the line "#option nodynamic" in ext/Setup.

    Usually this step will not be needed.

  6. Run make.

    • On Mac, set RUBY_CODESIGN environment variable with a signing identity. It uses the identity to sign ruby binary. See also codesign(1).
  7. Optionally, run 'make check' to check whether the compiled Ruby interpreter works well. If you see the message "check succeeded", your Ruby works as it should (hopefully).

  8. Optionally, run make update-gems and make extract-gems.

    If you want to install bundled gems, run make update-gems and make extract-gems before running make install.

  9. Run 'make install'.

    This command will create the following directories and install files into them.

    • ${DESTDIR}${prefix}/bin
    • ${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}
    • ${DESTDIR}${prefix}/include/ruby-${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}
    • ${DESTDIR}${prefix}/lib
    • ${DESTDIR}${prefix}/lib/ruby
    • ${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}
    • ${DESTDIR}${prefix}/lib/ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}
    • ${DESTDIR}${prefix}/lib/ruby/site_ruby
    • ${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}
    • ${DESTDIR}${prefix}/lib/ruby/site_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}
    • ${DESTDIR}${prefix}/lib/ruby/vendor_ruby
    • ${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}
    • ${DESTDIR}${prefix}/lib/ruby/vendor_ruby/${MAJOR}.${MINOR}.${TEENY}/${PLATFORM}
    • ${DESTDIR}${prefix}/lib/ruby/gems/${MAJOR}.${MINOR}.${TEENY}
    • ${DESTDIR}${prefix}/share/man/man1
    • ${DESTDIR}${prefix}/share/ri/${MAJOR}.${MINOR}.${TEENY}/system

    If Ruby's API version is 'x.y.z', the ${MAJOR} is 'x', the ${MINOR} is 'y', and the ${TEENY} is 'z'.

    NOTE: teeny of the API version may be different from one of Ruby's program version

    You may have to be a super user to install Ruby.

If you fail to compile Ruby, please send the detailed error report with the error log and machine/OS type, to help others.

Some extension libraries may not get compiled because of lack of necessary external libraries and/or headers, then you will need to run 'make distclean-ext' to remove old configuration after installing them in such case.

Copying

See the file COPYING.

Feedback

Questions about the Ruby language can be asked on the Ruby-Talk mailing list (https://www.ruby-lang.org/en/community/mailing-lists) or on websites like (https://stackoverflow.com).

Bug reports should be filed at https://bugs.ruby-lang.org. Read HowToReport for more information.

Contributing

See the file CONTRIBUTING.md

The Author

Ruby was originally designed and developed by Yukihiro Matsumoto (Matz) in 1995.

matz@ruby-lang.org